A line of waterproof detector and cable assemblies, for use with research radiometers to conduct biological and depth probe studies that measure the output of UV water purification systems and pollution monitoring, are available from International Light Inc., of Newburyport, Mass. IL Underwater Detectors feature heavy-duty quartz diffusers packaged in anodized aluminum housings with O-ring seals between filters, and water-blocked polypropylene reinforced cables up to 600 feet long.
17 Graf Rd. Newburyport Massachusetts 01950 US
International Light, Inc.